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<h1 class="title">mainwindow.cpp 示例文件</h1>
<span class="subtitle">richtext/orderform/mainwindow.cpp</span>
<!-- $$$richtext/orderform/mainwindow.cpp-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp">

  <span class="comment">/****************************************************************************
  **
  ** Copyright (C) 2016 The Qt Company Ltd.
  ** Contact: https://www.qt.io/licensing/
  **
  ** This file is part of the examples of the Qt Toolkit.
  **
  ** $QT_BEGIN_LICENSE:BSD$
  ** Commercial License Usage
  ** Licensees holding valid commercial Qt licenses may use this file in
  ** accordance with the commercial license agreement provided with the
  ** Software or, alternatively, in accordance with the terms contained in
  ** a written agreement between you and The Qt Company. For licensing terms
  ** and conditions see https://www.qt.io/terms-conditions. For further
  ** information use the contact form at https://www.qt.io/contact-us.
  **
  ** BSD License Usage
  ** Alternatively, you may use this file under the terms of the BSD license
  ** as follows:
  **
  ** &quot;Redistribution and use in source and binary forms, with or without
  ** modification, are permitted provided that the following conditions are
  ** met:
  **   * Redistributions of source code must retain the above copyright
  **     notice, this list of conditions and the following disclaimer.
  **   * Redistributions in binary form must reproduce the above copyright
  **     notice, this list of conditions and the following disclaimer in
  **     the documentation and/or other materials provided with the
  **     distribution.
  **   * Neither the name of The Qt Company Ltd nor the names of its
  **     contributors may be used to endorse or promote products derived
  **     from this software without specific prior written permission.
  **
  **
  ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  ** &quot;AS IS&quot; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.&quot;
  **
  ** $QT_END_LICENSE$
  **
  ****************************************************************************/</span>

  <span class="preprocessor">#include &lt;QtWidgets&gt;</span>
  <span class="preprocessor">#if defined(QT_PRINTSUPPORT_LIB)</span>
  <span class="preprocessor">#include &lt;QtPrintSupport/qtprintsupportglobal.h&gt;</span>
  <span class="preprocessor">#if QT_CONFIG(printdialog)</span>
  <span class="preprocessor">#include &lt;QPrinter&gt;</span>
  <span class="preprocessor">#include &lt;QPrintDialog&gt;</span>
  <span class="preprocessor">#endif</span>
  <span class="preprocessor">#endif</span>

  <span class="preprocessor">#include &quot;detailsdialog.h&quot;</span>
  <span class="preprocessor">#include &quot;mainwindow.h&quot;</span>

  MainWindow<span class="operator">::</span>MainWindow()
  {
      <span class="type"><a href="qmenu.html">QMenu</a></span> <span class="operator">*</span>fileMenu <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qmenu.html">QMenu</a></span>(tr(<span class="string">&quot;&amp;File&quot;</span>)<span class="operator">,</span> <span class="keyword">this</span>);
      <span class="type"><a href="qaction.html">QAction</a></span> <span class="operator">*</span>newAction <span class="operator">=</span> fileMenu<span class="operator">-</span><span class="operator">&gt;</span>addAction(tr(<span class="string">&quot;&amp;New...&quot;</span>));
      newAction<span class="operator">-</span><span class="operator">&gt;</span>setShortcuts(<span class="type"><a href="../qtgui/qkeysequence.html">QKeySequence</a></span><span class="operator">::</span>New);
      printAction <span class="operator">=</span> fileMenu<span class="operator">-</span><span class="operator">&gt;</span>addAction(tr(<span class="string">&quot;&amp;Print...&quot;</span>)<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(printFile()));
      printAction<span class="operator">-</span><span class="operator">&gt;</span>setShortcuts(<span class="type"><a href="../qtgui/qkeysequence.html">QKeySequence</a></span><span class="operator">::</span>Print);
      printAction<span class="operator">-</span><span class="operator">&gt;</span>setEnabled(<span class="keyword">false</span>);
      <span class="type"><a href="qaction.html">QAction</a></span> <span class="operator">*</span>quitAction <span class="operator">=</span> fileMenu<span class="operator">-</span><span class="operator">&gt;</span>addAction(tr(<span class="string">&quot;E&amp;xit&quot;</span>));
      quitAction<span class="operator">-</span><span class="operator">&gt;</span>setShortcuts(<span class="type"><a href="../qtgui/qkeysequence.html">QKeySequence</a></span><span class="operator">::</span>Quit);
      menuBar()<span class="operator">-</span><span class="operator">&gt;</span>addMenu(fileMenu);

      letters <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtabwidget.html">QTabWidget</a></span>;

      connect(newAction<span class="operator">,</span> <span class="operator">&amp;</span><span class="type"><a href="qaction.html">QAction</a></span><span class="operator">::</span>triggered<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&amp;</span>MainWindow<span class="operator">::</span>openDialog);
      connect(quitAction<span class="operator">,</span> <span class="operator">&amp;</span><span class="type"><a href="qaction.html">QAction</a></span><span class="operator">::</span>triggered<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&amp;</span>MainWindow<span class="operator">::</span>close);

      setCentralWidget(letters);
      setWindowTitle(tr(<span class="string">&quot;Order Form&quot;</span>));
  }

  <span class="type">void</span> MainWindow<span class="operator">::</span>createLetter(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&amp;</span>name<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&amp;</span>address<span class="operator">,</span>
                                <span class="type"><a href="../qtcore/qlist.html">QList</a></span><span class="operator">&lt;</span><span class="type"><a href="../qtcore/qpair.html">QPair</a></span><span class="operator">&lt;</span><span class="type"><a href="../qtcore/qstring.html">QString</a></span><span class="operator">,</span><span class="type">int</span><span class="operator">&gt;</span> <span class="operator">&gt;</span> orderItems<span class="operator">,</span>
                                bool sendOffers)
  {
      <span class="type"><a href="qtextedit.html">QTextEdit</a></span> <span class="operator">*</span>editor <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtextedit.html">QTextEdit</a></span>;
      <span class="type">int</span> tabIndex <span class="operator">=</span> letters<span class="operator">-</span><span class="operator">&gt;</span>addTab(editor<span class="operator">,</span> name);
      letters<span class="operator">-</span><span class="operator">&gt;</span>setCurrentIndex(tabIndex);

      <span class="type"><a href="../qtgui/qtextcursor.html">QTextCursor</a></span> cursor(editor<span class="operator">-</span><span class="operator">&gt;</span>textCursor());
      cursor<span class="operator">.</span>movePosition(<span class="type"><a href="../qtgui/qtextcursor.html">QTextCursor</a></span><span class="operator">::</span>Start);
      <span class="type"><a href="../qtgui/qtextframe.html">QTextFrame</a></span> <span class="operator">*</span>topFrame <span class="operator">=</span> cursor<span class="operator">.</span>currentFrame();
      <span class="type"><a href="../qtgui/qtextframeformat.html">QTextFrameFormat</a></span> topFrameFormat <span class="operator">=</span> topFrame<span class="operator">-</span><span class="operator">&gt;</span>frameFormat();
      topFrameFormat<span class="operator">.</span>setPadding(<span class="number">16</span>);
      topFrame<span class="operator">-</span><span class="operator">&gt;</span>setFrameFormat(topFrameFormat);

      <span class="type"><a href="../qtgui/qtextcharformat.html">QTextCharFormat</a></span> textFormat;
      <span class="type"><a href="../qtgui/qtextcharformat.html">QTextCharFormat</a></span> boldFormat;
      boldFormat<span class="operator">.</span>setFontWeight(<span class="type"><a href="../qtgui/qfont.html">QFont</a></span><span class="operator">::</span>Bold);

      <span class="type"><a href="../qtgui/qtextframeformat.html">QTextFrameFormat</a></span> referenceFrameFormat;
      referenceFrameFormat<span class="operator">.</span>setBorder(<span class="number">1</span>);
      referenceFrameFormat<span class="operator">.</span>setPadding(<span class="number">8</span>);
      referenceFrameFormat<span class="operator">.</span>setPosition(<span class="type"><a href="../qtgui/qtextframeformat.html">QTextFrameFormat</a></span><span class="operator">::</span>FloatRight);
      referenceFrameFormat<span class="operator">.</span>setWidth(<span class="type"><a href="../qtgui/qtextlength.html">QTextLength</a></span>(<span class="type"><a href="../qtgui/qtextlength.html">QTextLength</a></span><span class="operator">::</span>PercentageLength<span class="operator">,</span> <span class="number">40</span>));
      cursor<span class="operator">.</span>insertFrame(referenceFrameFormat);

      cursor<span class="operator">.</span>insertText(<span class="string">&quot;A company&quot;</span><span class="operator">,</span> boldFormat);
      cursor<span class="operator">.</span>insertBlock();
      cursor<span class="operator">.</span>insertText(<span class="string">&quot;321 City Street&quot;</span>);
      cursor<span class="operator">.</span>insertBlock();
      cursor<span class="operator">.</span>insertText(<span class="string">&quot;Industry Park&quot;</span>);
      cursor<span class="operator">.</span>insertBlock();
      cursor<span class="operator">.</span>insertText(<span class="string">&quot;Another country&quot;</span>);

      cursor<span class="operator">.</span>setPosition(topFrame<span class="operator">-</span><span class="operator">&gt;</span>lastPosition());

      cursor<span class="operator">.</span>insertText(name<span class="operator">,</span> textFormat);
      <span class="type"><a href="../qtcore/qstring.html">QString</a></span> line;
      foreach (line<span class="operator">,</span> address<span class="operator">.</span>split(<span class="string">&quot;\n&quot;</span>)) {
          cursor<span class="operator">.</span>insertBlock();
          cursor<span class="operator">.</span>insertText(line);
      }
      cursor<span class="operator">.</span>insertBlock();
      cursor<span class="operator">.</span>insertBlock();

      <span class="type"><a href="../qtcore/qdate.html">QDate</a></span> date <span class="operator">=</span> <span class="type"><a href="../qtcore/qdate.html">QDate</a></span><span class="operator">::</span>currentDate();
      cursor<span class="operator">.</span>insertText(tr(<span class="string">&quot;Date: %1&quot;</span>)<span class="operator">.</span>arg(date<span class="operator">.</span>toString(<span class="string">&quot;d MMMM yyyy&quot;</span>))<span class="operator">,</span>
                        textFormat);
      cursor<span class="operator">.</span>insertBlock();

      <span class="type"><a href="../qtgui/qtextframeformat.html">QTextFrameFormat</a></span> bodyFrameFormat;
      bodyFrameFormat<span class="operator">.</span>setWidth(<span class="type"><a href="../qtgui/qtextlength.html">QTextLength</a></span>(<span class="type"><a href="../qtgui/qtextlength.html">QTextLength</a></span><span class="operator">::</span>PercentageLength<span class="operator">,</span> <span class="number">100</span>));
      cursor<span class="operator">.</span>insertFrame(bodyFrameFormat);

      cursor<span class="operator">.</span>insertText(tr(<span class="string">&quot;I would like to place an order for the following &quot;</span>
                           <span class="string">&quot;items:&quot;</span>)<span class="operator">,</span> textFormat);
      cursor<span class="operator">.</span>insertBlock();
      cursor<span class="operator">.</span>insertBlock();

      <span class="type"><a href="../qtgui/qtexttableformat.html">QTextTableFormat</a></span> orderTableFormat;
      orderTableFormat<span class="operator">.</span>setAlignment(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>AlignHCenter);
      <span class="type"><a href="../qtgui/qtexttable.html">QTextTable</a></span> <span class="operator">*</span>orderTable <span class="operator">=</span> cursor<span class="operator">.</span>insertTable(<span class="number">1</span><span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> orderTableFormat);

      <span class="type"><a href="../qtgui/qtextframeformat.html">QTextFrameFormat</a></span> orderFrameFormat <span class="operator">=</span> cursor<span class="operator">.</span>currentFrame()<span class="operator">-</span><span class="operator">&gt;</span>frameFormat();
      orderFrameFormat<span class="operator">.</span>setBorder(<span class="number">1</span>);
      cursor<span class="operator">.</span>currentFrame()<span class="operator">-</span><span class="operator">&gt;</span>setFrameFormat(orderFrameFormat);

      cursor <span class="operator">=</span> orderTable<span class="operator">-</span><span class="operator">&gt;</span>cellAt(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span>)<span class="operator">.</span>firstCursorPosition();
      cursor<span class="operator">.</span>insertText(tr(<span class="string">&quot;Product&quot;</span>)<span class="operator">,</span> boldFormat);
      cursor <span class="operator">=</span> orderTable<span class="operator">-</span><span class="operator">&gt;</span>cellAt(<span class="number">0</span><span class="operator">,</span> <span class="number">1</span>)<span class="operator">.</span>firstCursorPosition();
      cursor<span class="operator">.</span>insertText(tr(<span class="string">&quot;Quantity&quot;</span>)<span class="operator">,</span> boldFormat);

      <span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator">&lt;</span> orderItems<span class="operator">.</span>count(); <span class="operator">+</span><span class="operator">+</span>i) {
          <span class="type"><a href="../qtcore/qpair.html">QPair</a></span><span class="operator">&lt;</span><span class="type"><a href="../qtcore/qstring.html">QString</a></span><span class="operator">,</span><span class="type">int</span><span class="operator">&gt;</span> item <span class="operator">=</span> orderItems<span class="operator">[</span>i<span class="operator">]</span>;
          <span class="type">int</span> row <span class="operator">=</span> orderTable<span class="operator">-</span><span class="operator">&gt;</span>rows();

          orderTable<span class="operator">-</span><span class="operator">&gt;</span>insertRows(row<span class="operator">,</span> <span class="number">1</span>);
          cursor <span class="operator">=</span> orderTable<span class="operator">-</span><span class="operator">&gt;</span>cellAt(row<span class="operator">,</span> <span class="number">0</span>)<span class="operator">.</span>firstCursorPosition();
          cursor<span class="operator">.</span>insertText(item<span class="operator">.</span>first<span class="operator">,</span> textFormat);
          cursor <span class="operator">=</span> orderTable<span class="operator">-</span><span class="operator">&gt;</span>cellAt(row<span class="operator">,</span> <span class="number">1</span>)<span class="operator">.</span>firstCursorPosition();
          cursor<span class="operator">.</span>insertText(<span class="type"><a href="../qtcore/qstring.html">QString</a></span>(<span class="string">&quot;%1&quot;</span>)<span class="operator">.</span>arg(item<span class="operator">.</span>second)<span class="operator">,</span> textFormat);
      }

      cursor<span class="operator">.</span>setPosition(topFrame<span class="operator">-</span><span class="operator">&gt;</span>lastPosition());

      cursor<span class="operator">.</span>insertBlock();
      cursor<span class="operator">.</span>insertText(tr(<span class="string">&quot;Please update my records to take account of the &quot;</span>
                           <span class="string">&quot;following privacy information:&quot;</span>));
      cursor<span class="operator">.</span>insertBlock();

      <span class="type"><a href="../qtgui/qtexttable.html">QTextTable</a></span> <span class="operator">*</span>offersTable <span class="operator">=</span> cursor<span class="operator">.</span>insertTable(<span class="number">2</span><span class="operator">,</span> <span class="number">2</span>);

      cursor <span class="operator">=</span> offersTable<span class="operator">-</span><span class="operator">&gt;</span>cellAt(<span class="number">0</span><span class="operator">,</span> <span class="number">1</span>)<span class="operator">.</span>firstCursorPosition();
      cursor<span class="operator">.</span>insertText(tr(<span class="string">&quot;I want to receive more information about your &quot;</span>
                           <span class="string">&quot;company's products and special offers.&quot;</span>)<span class="operator">,</span> textFormat);
      cursor <span class="operator">=</span> offersTable<span class="operator">-</span><span class="operator">&gt;</span>cellAt(<span class="number">1</span><span class="operator">,</span> <span class="number">1</span>)<span class="operator">.</span>firstCursorPosition();
      cursor<span class="operator">.</span>insertText(tr(<span class="string">&quot;I do not want to receive any promotional information &quot;</span>
                           <span class="string">&quot;from your company.&quot;</span>)<span class="operator">,</span> textFormat);

      <span class="keyword">if</span> (sendOffers)
          cursor <span class="operator">=</span> offersTable<span class="operator">-</span><span class="operator">&gt;</span>cellAt(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span>)<span class="operator">.</span>firstCursorPosition();
      <span class="keyword">else</span>
          cursor <span class="operator">=</span> offersTable<span class="operator">-</span><span class="operator">&gt;</span>cellAt(<span class="number">1</span><span class="operator">,</span> <span class="number">0</span>)<span class="operator">.</span>firstCursorPosition();

      cursor<span class="operator">.</span>insertText(<span class="string">&quot;X&quot;</span><span class="operator">,</span> boldFormat);

      cursor<span class="operator">.</span>setPosition(topFrame<span class="operator">-</span><span class="operator">&gt;</span>lastPosition());
      cursor<span class="operator">.</span>insertBlock();
      cursor<span class="operator">.</span>insertText(tr(<span class="string">&quot;Sincerely,&quot;</span>)<span class="operator">,</span> textFormat);
      cursor<span class="operator">.</span>insertBlock();
      cursor<span class="operator">.</span>insertBlock();
      cursor<span class="operator">.</span>insertBlock();
      cursor<span class="operator">.</span>insertText(name);

      printAction<span class="operator">-</span><span class="operator">&gt;</span>setEnabled(<span class="keyword">true</span>);
  }

  <span class="type">void</span> MainWindow<span class="operator">::</span>createSample()
  {
      DetailsDialog dialog(<span class="string">&quot;Dialog with default values&quot;</span><span class="operator">,</span> <span class="keyword">this</span>);
      createLetter(<span class="string">&quot;Mr. Smith&quot;</span><span class="operator">,</span> <span class="string">&quot;12 High Street\nSmall Town\nThis country&quot;</span><span class="operator">,</span>
                   dialog<span class="operator">.</span>orderItems()<span class="operator">,</span> <span class="keyword">true</span>);
  }

  <span class="type">void</span> MainWindow<span class="operator">::</span>openDialog()
  {
      DetailsDialog dialog(tr(<span class="string">&quot;Enter Customer Details&quot;</span>)<span class="operator">,</span> <span class="keyword">this</span>);

      <span class="keyword">if</span> (dialog<span class="operator">.</span>exec() <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qdialog.html">QDialog</a></span><span class="operator">::</span>Accepted) {
          createLetter(dialog<span class="operator">.</span>senderName()<span class="operator">,</span> dialog<span class="operator">.</span>senderAddress()<span class="operator">,</span>
                       dialog<span class="operator">.</span>orderItems()<span class="operator">,</span> dialog<span class="operator">.</span>sendOffers());
      }
  }

  <span class="type">void</span> MainWindow<span class="operator">::</span>printFile()
  {
  <span class="preprocessor">#if QT_CONFIG(printdialog)</span>
      <span class="type"><a href="qtextedit.html">QTextEdit</a></span> <span class="operator">*</span>editor <span class="operator">=</span> <span class="keyword">static_cast</span><span class="operator">&lt;</span><span class="type"><a href="qtextedit.html">QTextEdit</a></span><span class="operator">*</span><span class="operator">&gt;</span>(letters<span class="operator">-</span><span class="operator">&gt;</span>currentWidget());
      <span class="type">QPrinter</span> printer;

      <span class="type">QPrintDialog</span> dialog(<span class="operator">&amp;</span>printer<span class="operator">,</span> <span class="keyword">this</span>);
      dialog<span class="operator">.</span>setWindowTitle(tr(<span class="string">&quot;Print Document&quot;</span>));
      <span class="keyword">if</span> (editor<span class="operator">-</span><span class="operator">&gt;</span>textCursor()<span class="operator">.</span>hasSelection())
          dialog<span class="operator">.</span>addEnabledOption(<span class="type">QAbstractPrintDialog</span><span class="operator">::</span>PrintSelection);
      <span class="keyword">if</span> (dialog<span class="operator">.</span>exec() <span class="operator">!</span><span class="operator">=</span> <span class="type"><a href="qdialog.html">QDialog</a></span><span class="operator">::</span>Accepted) {
          <span class="keyword">return</span>;
      }

      editor<span class="operator">-</span><span class="operator">&gt;</span>print(<span class="operator">&amp;</span>printer);
  <span class="preprocessor">#endif</span>
  }

</pre>
</div>
<!-- @@@richtext/orderform/mainwindow.cpp -->
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